JP4202633B2 - Film laminate - Google Patents

Film laminate Download PDF

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Publication number
JP4202633B2
JP4202633B2 JP2001313806A JP2001313806A JP4202633B2 JP 4202633 B2 JP4202633 B2 JP 4202633B2 JP 2001313806 A JP2001313806 A JP 2001313806A JP 2001313806 A JP2001313806 A JP 2001313806A JP 4202633 B2 JP4202633 B2 JP 4202633B2
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JP
Japan
Prior art keywords
elastic
laminate
layer
region
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001313806A
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Japanese (ja)
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JP2002210871A (en
Inventor
エル. クルーガー,デニス
エー. スウェンソン,ダグラス
ジェイ. フォックス,ハーバート
イー. ヘルマー,パメラ
エル. ロックリッジ,ロチェル
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スリーエム カンパニー
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Priority to US901,420 priority Critical
Priority to US07/901,420 priority patent/US5376430A/en
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Publication of JP2002210871A publication Critical patent/JP2002210871A/en
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Publication of JP4202633B2 publication Critical patent/JP4202633B2/en
Application status is Expired - Fee Related legal-status Critical
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    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24669Aligned or parallel nonplanarities
    • Y10T428/24686Pleats or otherwise parallel adjacent folds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826Spot bonds connect components
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495Thickness [relative or absolute]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848Three or more layers

Description

[0001]
Field of Invention
  The present inventionMainly anisotropic film laminateAbout.
[0002]
background
Elastomeric films have been used for some time and have been discussed in the literature for their use in disposable diaper products, such as infant diapers and adult incontinence devices. These elastomeric webs or films are mainly used in the part that contacts the body of the garment. Many of these elastic bodies are temperature treated to provide controlled elastic recovery. In diapers, for example, elastic bands are typically used in the waistband portion and are discussed in US Pat. No. 4,681,580 to Reising et al. And US Pat. No. 4,710,189 to Lash. Both of these patents describe the use of thermally stable and thermally unstable forms of elastomeric materials. This thermally unstable form is created by stretching the material when heated to the crystal temperature and second order transition temperature of the material and then rapidly quenching and freezing in the thermally unstable stretched form. It is done. The thermally unstable elastomeric film is then applied, for example, to a diaper and then heated to form a thermally stable elastomer.
[0003]
Berger, U.S. Pat.No. 3,694,815, proposes a method of bonding to stretched and relaxed elastic ribbon garments, which stretches ordinary elastic ribbons and is relatively cold (e.g., well below ambient temperature). By freezing the elastomeric material at low).
[0004]
British Patent Application No. 2190406A proposed maintaining a normal elastomer in a stretched state by stiffening the member while it is bonded to a member to be sheared (eg, a diaper). Hardening is then removed or stopped following the bonding procedure. As described above, the elastomer is first applied to a member that has been stretched and then hardened in a stretched form.
[0005]
British Patent No. 2,160,473 to Matray et al. Proposes an elastomer that will shrink at high temperatures (eg, 175 ° F., ie above 79.5 ° C.). The claimed novel feature of this material is that, compared to the heat shrink material described above, it does not require a preheating or cooling process during stretching, and a differential speed roll process or “ It can be drawn at ambient temperature by “cold rolling”. The proposed polymer was a copolymer with alternating segments of polyamide polyether block polymer and was marketed under the trade name Pebax, in particular Pebax grade 2533 and 3533.
[0006]
Problems with these elastomeric films include the difficulties arising from applying stretched elastic films to soft substrates, such as disposable diapers. For example, these film elastomers will be subjected to shear stress in the bonded area after being applied to a soft substrate, for example with an adhesive. This can cause the elastic body to detach from the soft substrate, particularly after repeated stretching.
[0007]
In co-pending PCT application US90 / 05783 with common assignee of application filed Oct. 10, 1991 (WO 91/107277, published May 30, 1991), at least one airlastomer layer and Elastomeric laminates having at least one skin layer, which are known in the art to address some of the above problems, have been disclosed.
[0008]
Despite the many advantages of co-pending applications, there is room for improvement for some applications. In order to activate a non-elastomeric laminate to a state that would allow it to elastically recover and become elastic, the laminate is considered to be useful in many skin and core layers. It must be stretched in a substantial amount for the material. In addition, when an elastic body is applied to a garment, a high stretch ratio is generally required to provide sufficient elasticity to functionally elasticize the garment. This is problematic in applications where a low draw ratio is desired, for example, where a high level of clothing gathering is undesirable, or where required by manufacturing needs. There would also be a need for an elastic body that would only give elasticity in a specific region without applying a separate discrete elastic element to each region.
[0009]
The desirability of obtaining elasticity in specific areas of a ribbon or tape substrate is exemplified in U.S. Pat.Nos. 3,800,796, 4,834,820, 4,778,701 and 4,227,952, which are for use in diaper systems. The use of a composite material designed to have a specific region of elasticity is disclosed. However, these composites require complex construction mechanisms to combine the various elements of the composite and / or special procedures for their manufacture and use that limit their general applicability. To do.
[0010]
Summary of the Invention
  The present invention primarily relates to anisotropic film laminates. Further, although the subject of the invention claimed in the claims is an anisotropic film laminate, the invention will be described with reference to a multilayer elastomeric laminate having elastic and inelastic regions. A multilayer elastomer laminate having an elastic region and an inelastic region is not claimed in the claims, but the multilayer elastomer laminate is also referred to as “the present invention” hereinafter. This is because the inelastic region of the multilayer elastomer laminate is equivalent to the anisotropic film laminate of the present invention. As explained below, an anisotropic film laminate differs from stretching an elastomer laminate followed by a local deactivation heat treatment that is required in the case of multilayer elastomer laminates having elastic and inelastic regions. It is manufactured by performing a deactivation heat treatment over the entire stretched laminate. The following description basically relates to a multilayer elastomer laminate having an elastic region and an inelastic region, but also in the manufacture of anisotropic film laminate, the entire deactivation heat treatment instead of the local deactivation heat treatment. It should be understood that the production of the anisotropic film laminates of the present invention will also be apparent to those skilled in the art from the teachings relating to the production of multilayer elastomeric laminates.
  The present invention relates to an improved non-tacky, microtextured, multilayer elastomeric laminate. The laminate of the present invention includes an elastomeric polymer core layer that imparts elastomeric properties to the laminate and one or more skin layers. Laminates can be produced by co-extrusion of the selected polymers for the skin and core layers, or by applying one or more elastomer layers on one or more already formed skin layers. A new, non-tacky microtextured laminate stretches beyond the elastic limit of the skin layer and selectively removes the elasticity of the laminate in a given area while the laminate is being stretched. Obtained by activation. The laminate then recovers over a long period in the non-deactivated region, which can be instantaneous elastic recovery, which is epidermal controllability, or recovers by the application of heat, which is also epidermal controllability. is there.
  The selectively deactivated region provides a high strength inelastic region. The recovered area can be microtextured or have a detached skin layer.
[0011]
Detailed Description of the Preferred Embodiments of the Invention
The present invention relates to a novel non-tacky multilayer elastomeric laminate comprising at least one elastomeric core layer and at least one relatively non-elastomeric skin layer. The skin layer is stretched beyond its elastic limit and recovered in the non-deactivated region selected with the core layer to form an elastic region. Microtextures or microstructures are peaks and valleys that are sufficient to be perceived by the human naked eye to further increase opacity to the opacity of the laminate prior to microtexturing. It is a layer containing irregularities or wrinkles, and irregularities mean that it is smooth enough to be perceived as smooth or soft on human skin. To see the details of the microtexture, it is necessary to expand the irregularity.
[0012]
Elastomers can be formed into thin film layers and can broadly include any material that exhibits elastomeric properties at ambient conditions. Elastomer means a material that will substantially return to its original shape after stretching. Furthermore, preferably the elastomer will maintain only a small permanent set following deformation and relaxation. And the strain is preferably moderate stretch, i.e., about 400-500%, less than 20% of the original length, and more preferably less than 10%. In general, any elastomer that can be stretched to a relatively constant permanent deformation in a relatively inelastic skin layer is acceptable. This can be as low as 50% elongation. Preferably, however, the elastomer can experience a stretch of 300% to 1200% at room temperature, more preferably a stretch of 600 to 800% at room temperature. Elastomers can be both pure elastomers and blends containing the elastomeric phase or contents that will be substantially elastomeric at room temperature.
[0013]
Although heat shrinkable elastomers are contemplated for use in the present invention, in selected embodiments, non-heat shrinkable elastomers can be used while retaining the heat shrink advantage. Non-heat shrinkable means that when the elastomer is stretched, it will recover substantially, maintaining only a small permanent set as described above. Non-heat-shrinkable polymers include block copolymers as known to those skilled in the art as A-B or A-B-A block copolymers. These block copolymers are described, for example, in US Pat. Nos. 3,265,765; 3,562,356; 3,700,633; 4,116,917 and 4,156,673, which materials are incorporated herein by reference. Styrene / isoprene, butadiene or ethylene-butylene / styrene (SIS, SBS or SEBS) block copolymers are particularly useful. Other useful elastomeric compositions include elastomeric polyurethanes, ethylene copolymers such as ethylene vinyl acetate, ethylene / propylene copolymer elastomers or ethylene / propylene / diene terpolymer elastomers. Blends of these elastomers with each other or with non-elastomers that are modified are also conceivable.
[0014]
Viscosity-reducing polymers and plasticizers may also be blended with elastomers, such as low molecular weight polyethylene and polypropylene polymers or copolymers, or tackifying resins such as Wingtack ™ aliphatic hydrocarbon adhesives commercially available from Goodyear Chemical Company, for example. It may be blended with an imparting agent. Tackifiers can also be used to increase the adhesion of the elastomeric layer to the skin layer. Examples of tackifiers include aliphatic or aromatic hydrocarbon liquid tackifiers, polyterpene resin tackifiers, and hydrogenated tackifier resins. Aliphatic hydrocarbon resins are preferred.
[0015]
Dyes, pigments, antioxidants, antistatic agents, binding aids, anti-sticking agents, heat stabilizers, light stabilizers, foaming agents, glass foam, reinforcing fibers, metal salts for degradation and starch or fine fibers are also elastomeric cores May be used in the layer.
[0016]
The skin layer can be formed from any semi-crystalline or amorphous polymer that is less elastic than the core layer, and will experience permanent set at the stretch rate that an elastomer laminate will experience. . Therefore, some elastic compounds, such as certain olefinic elastomers, such as ethylene-propylene elastomers or ethylene-propylene-diene terpolymer elastomers or ethylene copolymers, such as ethylene vinyl acetate, can be used alone or as a skin layer. May be used in blends. However, the skin layer is generally a polyolefin, such as polyethylene, polypropylene, polybutylene or polyethylene-polypropylene copolymer, but in whole or in part, polyamide, such as nylon, polyester, such as polyethylene terephthalate, polyvinylidene fluoride. And polyacrylates such as poly (methyl methacrylate) (only in blends) and the like, and blends thereof. The material of the skin layer can be affected by the type of elastomer selected. In the embodiment of FIG. 3, the following three modes were found for the skin-core layer contact. The first is in full contact between the elastomeric core layer and the microtextured skin layer, the second is in full contact with the cohesive fracture core at the microtextured skin fold, and the third is micro It is a textured fold core / skin adhesive failure, with intermittent skin / core contact at the ridge valley.
[0017]
Preferably, the skin layer used in combination with the elastomeric core layer, which is an inelastic core layer, will form at least one outer layer of the laminate. Whether used in the outer or inner layer, the skin layer will modify the elasticity of the elastomer laminate when contacted with the elastomer layer by any of the three modes described above.
[0018]
Useful additives for the skin layer include, but are not limited to, mineral oil extenders, antistatic agents, pigments, dyes, tack-free agents, metal salts for decomposition and starch provided in less than about 15%, and Contains a stabilizer as described for the elastomer core layer.
[0019]
Other layers may be added between the core layer and the skin layer, for example, an intermediate layer may be added that increases or decreases the connectivity of the skin layer and the core layer. The tie layer may be formed from or compounded with conventional compounds used in this application, said compounds being maleic anhydride modified elastomers, ethyl vinyl acetate and olefins, polyacrylimides, butyl acrylates, peroxides, For example, peroxypolymers such as peroxyolefins, silanes such as epoxy silanes, reactive polystyrene, chlorinated polyethylene, acrylic acid modified polyolefins and ethyl vinyl acetate containing acetic and acetic anhydride functional groups etc., which are used in blends Or may be used as a compatibilizer or delamination promoter in one or more skin layers or core layers.
[0020]
The shrinkage recovery mechanism of the laminate after stretching and selective deactivation includes the film forming conditions, the properties of the elastomer layer, the properties of the skin layer, the method when the laminate film is stretched, and the relative thickness of the elastomer layer and the skin layer. Depends on the size. By controlling these variables, the laminate film can be designed to recover instantaneously, recover over time, or recover upon heat activation. Generally, the core-single skin layer ratio will be at least 3, preferably at least 5, and less than about 100, and most preferably at least 5 to about 75. The overall laminate thickness is at least 1 mil, preferably at least 2 mils, but will preferably be less than 10 mils for cost and performance considerations. Stretched and selectively deactivated instant shrinkable laminates say that stretched, non-deactivated areas of elastomer laminates will recover more than 15% per second Is. Time-shrinkable laminates are those that take 1 second or more after stretching, preferably 5 seconds or more, most preferably 20 seconds or more, to the 15% recovery point, and heat-shrinkable laminates are There is less than 15% shrinkage recovery in 20 seconds and it will be able to heat shrink for several weeks after stretching. The percent shrinkage is the stretched amount of stretched length-percent of the initial length of the activated region. For heat shrink laminates, there will be an activation temperature that will substantially initiate thermal activation recovery. The activation temperature used for heat shrink laminates is generally the temperature that produces 50% of the total possible recovery (Ta-50Preferably, this temperature is defined as the temperature that will result in 90% of the total possible recovery. The total possible recovery includes the amount of pre-activated contraction.
[0021]
In general, when the skin layer is relatively thin, the laminate will tend to shrink or recover immediately in areas that have not been deactivated. When the skin thickness is sufficiently thick, the laminate can become heat shrinkable in areas or portions that have not been deactivated. This phenomenon can occur even when the elastomer layer is formed from a non-heat-shrinkable material. By careful selection of the thickness of the elastomeric and skin layers, the temperature at which the laminate recovers at a set amount can be controlled. This is called epidermal controlled recovery, where generally the elastic recovery activation temperature of the elastomer core can be increased to a substantial extent by changing the thickness or composition of the epidermis, Generally, it can be raised by at least 10 ° F (5.6 ° C) or more, preferably 15 ° F (8.3 ° C) or more. Any effective skin thickness can be used, but a skin that is too thick will leave a permanent set in the laminate when stretched. In general, this will not happen if a single skin is less than 30% of the laminate. For most heat or time shrink materials, the stretched, non-deactivated region of the elastomer laminate is cooled, so that the energy released during stretching does not cause immediate heat activated elastic recovery. Fine tuning of the shrinkage recovery mechanism can be achieved by the extent to which the activated region is stretched.
[0022]
Compared to the laminate structure of copending application USSN 07 / 438,593, the improvement of the laminate structure of the present invention is in a laminate film that has elasticity in selected areas or zones separated by thin inelastic areas or zones. The elastic region or zone is characterized by a microtextured surface on the skin layer, or in a preferred embodiment, a thin skin layer that is selectively secured to the elastomeric layer in a thin inelastic region or zone ( (Figure 4). In this preferred embodiment, the detached skin layer material 13 in the elastic zone or region 12 allows the elastomeric core layer 14 to recover without limitation without providing elasticity to the skin layer 13. However, the skin layer 13 provides a continuous, non-stressed bonding surface for securing the elastic body 20 to the elasticized substrate without having to attach the elastic body 20 directly to the substrate. (Figure 6). The usual method of fixing a stressed elastic body directly to a substrate is cumbersome. The elastic body under stress creates a shear force that, when bonded to the substrate, can result in elastic body detachment, elastic body stress relaxation or elasticity reduction. The elastic body 20 of FIG. 4 is not directly bonded to the substrate when under stress.
[0023]
In the embodiment of FIG. 3, the elastic region 12 will be microtextured and will tend to form a mechanical release layer. The elastic body of this aspect can therefore be applied to a substrate with a uniform adhesive coating. The elastic region will then preferentially detach, so that the elastic body will be able to stretch and elastically recover while remaining firmly fixed to the substrate in the inelastic zone or region 11.
[0024]
A preferred mechanism for film laminate formation by extrusion is shown in FIG. 1, where D 1, D ′ and D ″ are feed blocks or manifolds. D 1, D ′ and D ″ may be separate or combined, or Or part of die E. E is a conventional multilayer die or mixing adapter and die as disclosed in US Pat. Nos. 4,152,387 or 4,197,069 (Cloeren). As shown, a feedblock or manifold can be used to feed the passages of each layer of the multilayer die E or a single passage of such dies (eg, having a mixing adapter in the feedblock region). AA ', BB' and CC 'are extruders. AA ', BB', and CC 'are streams of thermoplastic plastic material that are extruded into a feedblock or manifold die. E is a die of 3 or more layers (for example, 5 layers), F is a thermal casting roll, and G and H are rolls for facilitating take-up and winding of the laminate. A nip roller can be provided.
[0025]
The dies and feedblocks used are typically heated to promote polymer flow and layer adhesion. The die temperature depends on the polymer used and the subsequent heat treatment step. In general, the die temperature is not critical, but the temperature is generally in the range of 350-550 ° F (176.7-287.8 ° C) for exemplary polymers.
Whether the laminate is manufactured by coating, lamination, sequential extrusion, coextrusion, or combinations thereof, the formed laminate and its layers preferably have a substantially uniform thickness across the laminate. Laminates thus produced generally have uniform properties with minimal edge effects such as curling, elastic modulus changes, framing and the like.
[0026]
After formation, the laminate is stretched beyond the elastic limit of the skin layer, which deforms. The stretched laminate is then locally heat treated to selectively relax or deactivate the elastic body in specific regions or zones. Thus, the elastic body oriented in the locally treated regions can form a dimensionally stable elastic material in these regions or zones. This local heat treatment must be long enough to relieve the stress of the deformed and unstable elastic body.
[0027]
This locally heat treated laminate is recovered in regions or zones that have not been heat treated or deactivated, as discussed above. In thermal activation recovery, the intrinsic temperature of thermal activation is primarily determined by the material used to form the elastic layer of the laminate. However, any specific laminate may have an activation temperature, eg, Ta-50Or Ta-90Can be adjusted by changing the skin / core ratio of the laminate, adjusting the% stretch or overall laminate thickness. The activation temperature used for heat shrink laminates is generally at least 80 ° F. (26.8 ° C.), preferably at least 90 ° F. (32.23 ° C.), and most preferably 100 ° F. (37.8 ° C.) or higher. When forming a heat activatable laminate, the stretched and locally heat treated laminate is quenched with a cooling roller, which means that the heat generated during stretching is laminated in the remaining activated areas. Prevent early activation of recovery. The chill roll temperature is maintained below the activation temperature.
[0028]
FIG. 2 is a schematic representation of the general dimensions that can be varied in a recovered laminate in a microtextured region that has been uniaxially stretched and activated. A typical texture is a series of irregularly repeating traps. These variation values are the total height AA ′, the peak-to-peak distance BB ′, and the peak-to-valley distance CC ′. These variability values were measured with a series of polyolefin / styrene-isoprene-styrene / polyolefin laminates. The general ranges for AA ', BB' and CC 'have been described. For total height (A-A '), the measured range was 0.79-32 mils (0.02-0.81 mm). In the peak-to-peak distance (B-B '), i.e., the soot cycle, the measured range was 0.79 to 11.8 mils (0.02 to 0.30 mm). For the peak-to-valley distance (C-C '), the measured range was 0.04-19.7 mils (0.001-0.5 mm).
[0029]
The elastomer laminate produced according to the present invention can also be described in terms of increasing the skin surface area. If the microtextured laminate exhibits many textures, the surface area will increase substantially. As the stretch ratio increases, the surface area% of the laminate stretched and recovered from unstretched will increase. Generally, in the stretched and recovered portion or region, the epidermal surface area will increase by 50%, preferably at least 100%, and most preferably at least 250%. When microstructured or when the skin is detached from the elastic core, the increase in surface area directly contributes to the overall loft, texture and feel of the laminate surface.
[0030]
For structures that tend to delaminate, a short relaxation or heat treatment after activation may be used to counteract this tendency, if desired. This short heat treatment step will release the unstable orientation remaining between the interface of the elastomer layer and the skin layer, especially between the ridges of the microtextured skin layer in the elastic body. The heat treatment is generally above the glass transition temperature (Tg) of the elastomer and above the Bg Tg of the ABA block copolymer but below the melting point of the skin polymer. Lower heat treatment temperatures are generally sufficient. The heat treatment will generally be longer than 0.1 seconds depending on the heat treatment temperature and then cooled to room temperature in a relaxed heat treatment state. Commercially available ABA block copolymers (eg Kraton ™ 1107) have been found to be sufficient for heat treatment or relaxation temperatures above 75 ° C. This heat treatment should be avoided prior to detachment if it is preferable to cause detachment of the epidermis in the elastic region.
[0031]
FIG. 3 is an example of a film that has been stretched and locally heat treated to create an inelastic deactivated region 11 and then recovered in the elastic region 12. The elastic body was locally heat treated as a band extending across the stretch direction. However, the local heat treatment and deactivation can extend in bands in the stretching direction, multi-direction or pattern to make an elastic body that can be selectively tightened by the locally heat treated deactivated region or zone. In FIG. 3, the elastic region 12 of the elastic laminate 10 has a microtextured skin layer.
[0032]
In certain embodiments, the skin layer can be selectively detached in the activated elastic region 12 to form the elastic region 12 of FIG. 4, for example, by processing the film in combination with a delamination heat treatment. . This desorption process depends on the relative adhesion of the skin and core layers and the thickness of the skin and core layers. Additives may be added to the skin and / or core layer to promote delamination, for example release agents or polymers that are incompatible with the polymer in adjacent layers that tend to separate the interlayer interface. For example, polystyrene and oil added to the AB block copolymer core promote delamination of the polyolefin skin layer, while ethylene vinyl acetate or poly-α-methylstyrene added to the polyolefin skin layer also promotes delamination. I understood that.
[0033]
FIG. 4 shows an embodiment in which the skin layer 13 is selectively detached from the elastomer core layer 14. In the locally heat-treated inelastic region 11, the oriented skin layer 13 remains firmly bonded to the elastomer core layer and is reinforced by orientation and subsequent local heat treatment. The elastomer core layer 14 in the region 11 is thinner than the elastomer core layer in the elastic region 12 (FIG. 3). The skin layer 13 detached in the elastic region 12 provides a bonding surface in the elastic region 12 while avoiding direct bonding of the substrate to the elastomeric layer 14, which is a problem discussed above.
[0034]
The elastic body 20 of FIG. 4 also provides the air channel 15. These channels 15 provide breathability to elasticized areas such as clothing such as cuffs or diaper bands or foot bands.
[0035]
The laminates of FIGS. 3 and 4 are widely used in disposable diapers, for example, as waistbands located on the front or side of the diaper at the waist level, as leg elastics, as outer cover sheets, or as elasticized slip-on diapers. Or it can be used in training pants. Here, the elastomeric laminate can be used as or in a side panel around the hip having an elastic zone for making a tight-fitting garment. This laminate can be applied in a continuous or intermittent length by conventional methods. When applied, a particular advantage of an elastic laminate having a delaminated skin (e.g., the embodiment of FIG. 4) is that extremely uniform shearing is substantially flat when the elastic region 12 is stretched. It can be easily obtained by applying a laminate having a non-elastic region 11. As the elastic region 12 recovers, the garment layers 18 and 19 shear only in the region having the epidermal delamination, i.e., the elastic region 12, and are uniform in the elastic region 12 (i.e., as a single gather). ) She will be shirred. This makes it possible to predict and easily control the shearing of the clothing, which is not possible with conventional film elastic bodies.
[0036]
Similar uniform shearing can be obtained by zone release coating the elastic laminate in the elastic region 12 in FIG. The release coating can be a conventional low adhesion coating or, in a preferred embodiment, an oil, such as mineral oil. Oil is preferred because of the cost or ease of application. This oil was not seen to migrate when the elastic body 10 was wound into a roll, as expected with conventional films. It is believed that oil migration is suppressed by the microtextured skin layer surface in the oil-coated part.
[0037]
As shown in FIGS. 3 and 4, when an elastic laminate having a flat inelastic region 11 is bonded to a garment, this elastic body is also low in the elastic laminate 10 compared to a continuous elastic film. Provides improved elastic stress with elongation. The elongation stress in this arrangement is preferentially limited to an elastic region that provides increased elastic stress or force proportionally.
[0038]
The elastomeric laminate can be bonded by conventional methods by ultrasonic welding, heat sealing, adhesives, such as pressure sensitive adhesives. Adhesion will occur preferentially at least in the locally heat-treated inelastic region 11.
[0039]
Another use of the laminate of the present invention would be as an elasticized diaper fastening tab shown in FIG. 5 described in US Pat. No. 3,800,796. While providing a selectively deactivated inelastic end region 7 and an elastic central region 6, the elastic zone 6 can be positioned at a desired location. Thereafter, the adhesive 8 could be applied to one or more surfaces of the inelastic end region.
[0040]
The laminate of FIG. 7 is an example of a structure suitable for use as an outer cover sheet or elastic panel in an elasticized disposable garment, slip-on diaper or training pant using the laminate of FIG. The laminate of FIG. 3 can also be used for the structure shown in FIG. 7 (and FIGS. 8-16). The elastic portions 21 and 23 of the elastic laminate structure 30 will be joined to form an elasticized side panel around the wearer's hip. The non-elastic portion 22 is formed in the same manner as the non-elastic region 11 and is bonded to the absorbent pad at the end, preferably to a liquid-impermeable outer cover layer for the absorbent pad. Alternatively, the non-elastic portion 22 can provide a liquid impermeable outer layer on the absorbent pad structure of the elasticized diaper or training pant. In a preferred embodiment, the elastic laminate 30 further includes a nonwoven layer 24 bonded to at least one side of the laminate to reinforce the elastic material or impart flexibility.
[0041]
FIG. 8 is a possible structure using, for example, the elastic laminate of FIG. 7, or a version using the elastic laminate of FIG. 3, with or without a nonwoven layer laminated to it. A structure is illustrated. Laminate 40 would be a continuous web that could be cut into separate units optionally provided with elastic bodies 44 and 43 to provide waist elasticization for a disposable garment as shown in FIG. FIG. 8 shows that the garment is further transformed by cutting portions 41 and 42 to provide the wearer's feet.
[0042]
Another embodiment is depicted in FIG. 9, where further inelastic regions 51 and 52 are provided on the outer edges of the elastic regions 21 and 23 as sealable pieces. The laminate of FIGS. 8 and 9 can be formed into a garment as shown in FIG. 10, which can be a structure as shown in FIG. 11, where the outside of the laminate 40 or 50 The edge 61 or 62 is sealed with a side seam 63 to form a pant-type garment having an elastic side panel formed by the joining of the elastic portions 21 or 23. An absorbent pad is placed near the inelastic region 22 of the laminate, which is further covered by a conventional liquid permeable inner layer or topsheet 65, which can also cover the inner surface of the elastic laminate 40 or 50. The absorbent 64 can be applied to the laminate by any conventional means, including, for example, the use of a hot melt adhesive that can also be used to bond the topsheet 65.
[0043]
Another embodiment of using a laminate as shown in FIG. 7 in diapers or training pants is depicted in FIG. In this embodiment, the absorbent pad is sandwiched between a liquid permeable top sheet 65 and a liquid impermeable cover sheet 66 to form a composite structure 60. As shown in FIG. 7, the central non-elastic region 22 of the elastic laminate piece is then bonded to the first front end portion 74 of the pad composite structure 60, preferably in a liquid-impermeable outer sheet 66. Combined. The outer longitudinal side edges 71 and 72 of the elastic regions 21 and 23 are then joined to the facing rear end portion 75 of the pad composite structure 60 at the joining region 73 by conventional methods. The side edges 71 and 72 may be elastic or inelastic, but are preferably inelastic to improve adhesion. The side edges 71 and 72 may be adhered to or sandwiched between the outer surface of the nonwoven fabric topsheet 65 or the liquid-impermeable outer sheet 66. Preferably, the edges 71 and 72 are adhered to the outer surface of the liquid impermeable outer sheet 66 as in FIG. The width of the elastic panel 70 is the same as the width of the laminates 40 and 50 along the longitudinal seam 63, as shown in FIGS. Alternatively, the inelastic region 22 can be bonded to the opposite rear end portion 75 of the absorbent pad composite 60, with the edges 71 and 72 being connected to the first front end portion 74 of the pad composite 60. .
[0044]
FIGS. 13 and 14 (elastic band 80 is enlarged to show details) show another embodiment, where the elastic composite is coupled to the front portion 81 of the absorbent pad composite 60 and is removable. Yes or resealable. The absorbent pad composite 60 has foot elastic bodies 86 and 87 and waist elastic bodies 88 and 89. The inelastic region 22 of the elastic band 80 is bonded to the liquid impermeable outer cover sheet 64 at the rear end 75 of the absorbent pad composite 60. At the outer side edges of the elastic regions 21 and 23, coupling regions 82 and 83 are provided, which are preferably inelastic. On the coupling regions 82 and 83, a pair of first coupling means 85 and 84 is provided, which is removable at the front end 74 of the absorbent pad composite 60 with one or more second auxiliary coupling means 81. Are combined. The first bonding means 84 and 85 can be conventional bonding means such as pressure sensitive adhesive patches, mechanical fastener patches or cohesive adhesive patches. Fastening tabs (not shown) may also be used, where the tabs are permanently connected to the connecting region (82 or 83) at one end and have a connecting means (84 or 85) at the end. Auxiliary coupling means 81 includes suitable areas compatible with pressure sensitive adhesive on bonding areas 82 and 83 (e.g., plastic landing strips or, if necessary, a reinforced portion of liquid impervious backsheet 64). . Zone 81 also includes an auxiliary mechanical fastening element on 85 mechanical fastening elements, or a cohesive adhesive suitably matched. Although not preferred, the elastic laminate band 80 can be releasably bonded to the rear end 75 of the absorbent pad 60, where the non-elastic region 22 is permanently attached to the front end 74 of the absorbent pad 60. To do.
[0045]
Figures 15 and 16 (the elastic band 90 is enlarged to show details) show another version of a removable and resealable pant design that uses an elastic laminate band 90 with a fastening tab 91 as a coupling means. Show. The fastening tab 91 is permanently attached at the first end 93 of the bonding region 92 of the elastic laminate band 90, which region is preferably inelastic. This permanent bond can be achieved by conventional means such as adhesive bonding, heat sealing or ultrasonic welding. The distal end 94 of the fastening tab 91 has suitable coupling means to engage the outer surface of the facing elastic portion (21 or 23) of the elastic band 90. Either of the facing elastic parts also has fastening means (eg, a pressure sensitive adhesive patch or tab that engages the absorbent pad composite). Preferably, this coupling means at the end 94 includes a male mechanical fastening element which is releasably engaged with the nonwoven or perforated material laminated to the outer surface of the elastic band 90 as shown in FIG. Will match. A pressure sensitive adhesive may also be used on the end 94 of the fastening tab 91 as a coupling means.
[0046]
  A further aspect of the present invention is the first shaftIn the direction ofInelastic, andTheAxis perpendicular to the first axisIn the direction ofElastic or stretchableDifferentIsotropic filmlaminateIt is.thisthe filmIn the first axis ofInelasticNature ofIsA continuous elastomeric core layer and at least one continuous plastic skin layerIt is obtained by stretching an elastic laminate and then subjecting the entire stretched laminate to a deactivation heat treatment rather than just a local deactivation heat treatment. The skin layer is then in the stretching direction or axisOrientedAnd strengthened, andSubstantially in the direction of this axisNon-stretchabilityCan be.On the other hand, in the direction perpendicular to the first axis or in the transverse directionIf the film is stretched and recovered, the filmThatdirectionInEasily stretchable or elastic. thislikeAnisotropicSex isApplications where the film is strong in one direction but is flexible in the transverse directionSpeciallyWell suited toInThe For example, a pressure sensitive adhesive tape for sealing applied to non-uniform surfaces such as pipe fittings or threads is advantageous in the transverse direction to closely engage all surfaces, regardless of changes in diameter. It is flexible and still strong in the longitudinal direction.
[0047]
  The following examples are provided to illustrate the preferred embodiments contemplated herein and the best mode of practice of the invention, but are not intended to be limiting.In the following, the production of a multilayer elastomer laminate having an elastic region and a non-elastic region is described, but the anisotropic film laminate of the present invention is obtained by subjecting the stretched laminate to a deactivation heat treatment throughout. It should be understood by those skilled in the art that the same can be produced.
[0048]
Example
A continuous coextrusion process was used to produce a three-layer film laminate having two outer inelastic skin layers and one elastomeric core layer. One extruder is used to feed the elastomeric core layer material, and the other extruder feeds the non-elastic skin layer material into the three-layer Coeren ™ feedblock. Used for. The resulting layered melt was extruded from a single manifold film die and cast onto a cast roll. The feedblock and die temperatures were about 400-540 ° F (204-282 ° C) and the cast roll temperature was about 70-180 ° F (21-82 ° C). The linear velocity averaged about 30 feet (9.14 m) / min. The total thickness of the film laminate was 3 to 10 mils (0.076 to 0.254 mm) and the core / skin (C / S) ratio was varied from 4: 1 to 10: 1. The film composition, feedblock and die temperature, cast roll temperature, C / S ratio and total film thickness (in mils) are provided in Table 1.
[0049]
Local heat treatment was used to create inelastic regions or zones on the elastic laminate. A 3 inch (7.62 cm) wide sample film is first stretched in the transverse direction (TD) at a ratio of about 3: 1 to 6: 1 and then passed over a patterned hot roll, where it This resulted in a parallel longitudinal inelastic region band running in the machine direction (MD) of the film. The heating temperature was approximately 150-180 ° F (66-82 ° C).
[0050]
A cycle stretching / heating process was used to delaminate the outer inelastic skin layer from the elastomer core layer in the elasticized region of the film laminate. A 1.0 inch × 3.0 inch (2.54 cm × 7.62 cm) sample (MDXTD) film was stretched laterally to the point of failure (95-150%), which activated the locally unheated region. The film was then placed in a stream of hot air (140 ° F. or 60 ° C.) supplied by a heat gun. The film was heated and warmed (<1 min) until the elasticized area was fully shrunk. The film was then removed from the heat, stretched by hand in the transverse direction until just before breaking, and then immediately recovered. The film was heated again (<1 minute) and then stretched cyclically in the transverse direction and immediately released. This heating / stretching process was repeated until delamination was observed, or delamination could not occur. The delamination that occurred after 3-10 cycles was considered excellent. The degree of delamination is visually assessed, and no delamination (0), difficult delamination (1), good delamination (2), easy delamination, i.e. excellent (3), and Very easily classified as delamination (4). Delamination observations are given in Table II.
[0051]
[Table 1]
[0052]
[Table 2]
[0053]
[Table 3]
[0054]
Tensile and elongation data (ASTM D-638 and D-412) were obtained on samples using an Instron ™ 1122 Tensile Tester (available from Instron Corporation). A 0.5 inch x 3.0 inch (1.27 cm x 7.62 cm) sample was placed at a 2 inch (5.08 cm) gauge length and stretched at a rate of 12 inches (30.5 cm) / min. Tensile and elongation data are given in Table II.
[0055]
[Table 4]
[0056]
[Table 5]
[0057]
The following abbreviations are used in Table I to indicate the materials used for the skin and core layers.
PP 3085 is Escorene ™ 3085, a 36 MFI polypropylene available from Exxon Corporation.
PP 3445 is Escorene ™ 3445, a 35 MFI polypropylene available from Exxon Corporation.
PP 1024 is a 12 MFI polypropylene, Escorene ™ 1024 available from Exxon Corporation.
LDPE 4012 is low density polyethylene # 4012 available from Dow Chemical Company.
HDPE 52053 is high density polyethylene # 52053 available from Dow Chemical Company.
K-1657 is Kraton ™ G-1657, a styrene-ethylene-butylene-styrene (SEBS) block copolymer available from Shell Chemical Company.
K-1107 is Kraton ™ 1107, a styrene-isoprene-styrene (SIS) block copolymer available from Shell Chemical Company.
PU 2102-75A is a polyurethane, Pellanthane ™ 2102-75A, available from Dow Chemical Company.
PS-G3 is polystyrene # G3 available from Amoco Oil Company.
PS-666 is polystyrene # 666 available from Dow Chemical Company.
PS-615 is polystyrene # 615 available from Dow Chemical Company.
EVA 260 is Elvax ™ 660, an ethylene-vinyl acetate copolymer available from E.I. duPont de Nemours and Company.
PAMS 18-290 is poly (α-methylstyrene) # 18-290 available from Amoco Oil Company.
Irganox ™ 1076 is an antioxidant available from Ciba-Geigy Corporation.
Amoco ™ White Mineral oil # 31USP is a mineral oil available from Amoco Oil Company.
[0058]
Examples 1 and 2 are film laminates having two layers of an outer inelastic layer of polypropylene, two layers, and an elastomeric core layer of styrene-ethylene-butylene-styrene (SEBS) block copolymer, one layer. Two different polypropylenes were used. The inelastic skin layer was delaminated from the elastomeric core layer in the elasticized region of the film laminate with PP 3085 as the inelastic skin layer, but delamination was difficult. No delamination was observed in the sample with PP 1024 as the inelastic skin layer. Examples 3-12 show that the addition of polystyrene, a stiffening agent, to the elastomer core layer promotes delamination. Examples 4-6 are examples of the effect of varying the amount of polystyrene added to the elastomeric core. No substantial effect on the delamination or elastic properties of the film laminate was observed by changing the amount of polystyrene from 10 to 20% by weight. In Examples 8-10, the cast roll temperature was varied from 80-180 ° F (27-82 ° C). Increasing the cast roll temperature above 120 ° F (49 ° C) did not affect delamination.
[0059]
Examples 13-19 are film laminates having an outer inelastic layer of PP 3085 polypropylene, two layers, and an elastomeric core layer of styrene-isoprene-styrene (SIS) block copolymer, one layer, in the core Has 10% by weight of styrene. For these samples, the skin layer was easily delaminated from the elastomeric core layer. These samples also show that increasing the feed block and die temperature does not affect the delamination of the film laminate.
[0060]
Examples 7, 8, 21 and 22 show that film laminates with higher core: skin ratio (7: 1) delaminate more easily than those with lower core: skin ratio (5: 1) .
[0061]
Examples 23 and 24 show the effect of adding mineral oil to the elastomeric core. These samples delaminate more easily than samples with an elastomeric core that did not contain any oil additives.
[0062]
Examples 25 and 26 are an outer non-elastic layer of polyethylene, two layers, and an elastomeric core layer of a styrene-isoprene-styrene (SIS) block copolymer, the core layer having 10 wt% polystyrene in the core, A film laminate with one layer. The use of high density polyethylene and low density polyethylene as the skin layer was investigated. The skin layer easily delaminated from the elastomeric core layer in these samples.
[0063]
Examples 27-32 show that the addition of 5 and 10% by weight of ethylene vinyl acetate copolymer to the polypropylene skin layer promotes delamination. Comparison of Examples 29 and 30 to Examples 31 and 32 also shows that delamination occurs more easily when the elastomer core is a styrene-isoprene-styrene block copolymer than when the core is styrene-ethylene-butylene-styrene. It shows that. Examples 29 and 33 show that the addition of 10% by weight poly (α-methylstyrene) to the polypropylene skin layer promotes delamination.
[0064]
Example 34 is a film laminate having an outer inelastic layer of polypropylene, two layers, and an elastomer core layer of polyurethane, one layer. This sample exhibits good delamination properties.
[0065]
Example 35
An elastic film laminate having the following characteristics was prepared as in Example 11.
Skin composition: PP 1024
Core composition: K-1107
Additive in core: 20% PS G-181And 0.5% Irganox ™ 10102
C / S ratio: 7.25
Film thickness: 2.5 mil (62.5 microns)
1 Amoco polystyrene # 1-G18-C7 available from Amoco Oil Company.
2 Antioxidants available from Ciba-Geigy Corporation
[0066]
  The film laminate was stretched in the transverse direction at a ratio of about 6: 1 and then passed over a patterned hot roll (88 ° C.). This resulted in alternating parallel longitudinal bands (about 1.5 mm wide) of inelastic and elastic regions running in the machine direction of the film.the aboveThe outer inelastic skin layer was delaminated from the elastomeric core layer in the elasticized region of the film laminate using the repeated stretching and thermal processing described in.
[0067]
The film laminate is then stretched 100% in the transverse direction to create a typical nonwoven web (17g / m2) used for disposable diaper cover materials.2 Basis weight point bonded spunbond polypropylene) was laminated to one side of the film laminate using an acrylate based adhesive transfer tape (# 950 available from 3M Company).
[0068]
Machine direction tensile strength data was obtained for elastic film / nonwoven laminates using an Instron ™ 1122 tensile tester. The test was a modification of ASTM D-882. A 1 inch × 3 inch (2.54 cm × 7.62 cm) sample was placed at a 2.0 inch (5.08 cm) gauge length and stretched at a rate of 20 inches (50.8 cm) / min. 6 samples were tested. The data ranged from 5300 to 6000 g / inch (2.09 to 2.36 kg / cm) wide at 35-45% stretch. For comparison, tensile strength data was obtained with a 1.5 mil (37.5 micron) thick polyethylene film (available from Clopay), a typical diaper backsheet material. Values ranged from 1188 g / inch (0.47 kg / cm) width to 400% stretch to 1960 g / inch (0.77 kg / cm) width to 730% stretch.
[0069]
Example 36
Approximately 8 in produced in Example 35 above2 (20.3cm2) Was stretched to 100% in the transverse direction and the central longitudinal zone 4 inches wide was subjected to a deactivation heat treatment (about 93 ° C. for 1 minute). This resulted in a film sample having an inelastic central region with an elasticized region adjacent to both sides of the central zone.
[0070]
Examples of the elastic film laminate of the present invention include the following.
1. The ratio of the first thickness to the second thickness is at least 3 or at least 5.
2. The sum of the first and second thicknesses is at least 1 mil, or at least 2 mils, or at least 10 mils for all layers.
3. At least one skin layer is a polyolefin.
4). At least one elastomer layer is a block copolymer elastomer having an elastomer block of conjugated diene.
5. At least one elastomer layer is polyurethane.
6). The conjugated diene is isoprene.
7. The elastomer layer contains 0-20% polystyrene polymer.
8). The conjugated diene of the elastomer layer comprises ethylene-butylene, and the elastomer layer further comprises 5-20% polystyrene polymer or 2-10% oil.
9. The skin layer comprises polyethylene or polypropylene blended with 2-20% ethylene vinyl acetate or 0-20% poly alpha-methylstyrene.
10. The inelastic region is substantially flat, the skin layer is oriented in the first direction, and the film laminate is elastic in the first direction in the elastic region.
11. The elastic film laminate further includes a pressure sensitive adhesive layer.
12 The elastic film laminate includes a low adhesion back gluing layer in the elastic region on the skin layer.
13. In the elastic region on the skin layer, the low adhesive back gluing layer contains oil.
14 The pressure sensitive adhesive is in the inelastic region.
15. A low-adhesive back gluing layer is included in the elastic region on the skin layer.
16. The elastic film laminate is elastic in the transverse direction.
The following are mentioned in the anisotropic laminate of this invention.
1. Including a tape further comprising a pressure sensitive adhesive layer.
In the disposable absorbent clothing of the present invention, the following may be mentioned.
1. The central inelastic portion (22) forms the liquid-impermeable outer layer of the absorbent core structure.
2. The elastic part further includes inelastic regions (51 and 52) as a piece that can be sealed at its outer edge.
3. Elastic portions provide foot openings by cutout portions (41 and 42) on each elastic portion (21 and 23).
4). The facing outer edge (61 or 62) of each elastic region forms a side seam (63) to provide two facing elastic side panels.
4). The elastic film laminate is bonded to the absorbent core structure at the first end (75 or 74) at the inelastic portion (22) and at the outer edge (71 or 72) of the elastic portion (21 or 23). A piece bonded to the second facing end (75 or 74) of the structure.
5. A non-elastic portion (22) is permanently bonded to the liquid-impermeable outer layer of the absorbent core structure at a first end, and the absorbent core at the outer edges (71 and 72) of the elastic portion (21 or 23). Removably coupled to the opposite end of the structure.
6). The outer edges of the elastic portions (21 and 23) have inelastic coupling regions (82 and 83), each having a first coupling means (85 or 84), which is the first of the absorbent pad structure. Is detachably coupled to the second auxiliary coupling means (81).
7. The first coupling means includes a pressure sensitive adhesive coupling means.
8). The first coupling means includes mechanical coupling means, and the auxiliary coupling means (81) includes auxiliary mechanical coupling means.
9. The first bonding means includes a cohesive adhesive bonding means, and the auxiliary bonding means (81) includes an auxiliary adhesive adhesive.
10. The outer edge of the elastic portion (21 or 23) has a coupling region (92) having a fastening tab 91 permanently coupled to the coupling region (92) at the first end (93) and the second end ( 94) with attached removable coupling means such as removable to the facing elastic part (21 or 23).
11. The removable coupling means includes a non-woven material including a male mechanical fastening element and an elastic band (90) attached to an outer surface that can engage the male mechanical fastening element.
12 In the elastic part of the laminate, the skin layer and the core layer are desorbed in at least one elastic region.
13. The inelastic region is substantially flat, the skin layer is oriented in the first direction, and the film laminate is elastic in the first direction in the elastic region.
Examples of the method for forming an elastomer film laminate of the present invention include the following.
1. Prior to recovery, the stretched laminate is cooled to form a heat shrinkable laminate.
2. By repeated stretching and heating, the skin layer and the core layer are selectively delaminated in the recovered non-heat treated elastic region of the elastic laminate.
[Brief description of the drawings]
FIG. 1 is a schematic representation of the method and apparatus used to co-extrude the laminate of the present invention.
FIG. 2 is a cross-sectional segment of a laminate having a microstructure resulting from uniaxial stretching of the film of the present invention.
FIG. 3 is a perspective view of an embodiment of the epidermis of the present invention.
FIG. 4 is a perspective view of an embodiment of a delaminated epidermis of the present invention.
FIG. 5 is a diaper tape tab formed from the laminate of the present invention.
FIG. 6 is an end view of FIG. 4 of an embodiment that would appear in a diaper.
FIG. 7 is a perspective view of an embodiment of a delaminated skin as in FIG. 4 laminated to a nonwoven with a large central inelastic region that is suitable as a disposable training pant with elastic side panels. FIG.
FIG. 8 is a plan view of a laminate having a large inelastic region in FIG.
9 is another embodiment of the embodiment of FIG. 8 having an inelastic outer edge region.
FIG. 10 is a perspective view of training pants using the laminate of the present invention as an outer cover sheet.
FIG. 11 is a plan view of training pants using the laminate of the present invention as an outer cover sheet.
FIG. 12 is a plan view of another embodiment of a training pant using the laminate of the present invention as an outer cover sheet.
FIG. 13 is a perspective view of a resealable training pant using the laminate of the present invention as an outer cover sheet.
14 is a plan view of the training pants of FIG. 13 in an open state.
FIG. 15 is a perspective view of another embodiment of a resealable training pant using a laminate of the present invention as an outer cover sheet.
16 is a plan view of the alternative embodiment of FIG. 15 using the laminate of the present invention as an outer cover sheet.

Claims (1)

  1. An anisotropic film laminate comprising a continuous elastomer core layer and at least one continuous inelastic uniaxially oriented plastic skin layer, wherein the film laminate is oriented in the orientation direction of the at least one skin layer. Being substantially inelastic, the skin layer being stretchable in a direction transverse to the orientation direction, and thus the film laminate is stretchable in the transverse direction, the anisotropic A film laminate is obtained by stretching an elastic laminate comprising a continuous elastomer core layer and at least one continuous plastic skin layer, and then subjecting the entire stretched laminate to a deactivation heat treatment. Film laminate.
JP2001313806A 1992-06-19 2001-10-11 Film laminate Expired - Fee Related JP4202633B2 (en)

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Families Citing this family (167)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU635580B2 (en) * 1989-11-17 1993-03-25 Minnesota Mining And Manufacturing Company Elastomeric laminates with microtextured skin layers
US5807368A (en) * 1993-06-14 1998-09-15 Minnesota Mining And Manufacturing Company Disposable garment formed from an elastic film laminate
DE4310012A1 (en) * 1993-03-27 1994-09-29 Roehm Gmbh Dermal therapeutic system consists of a meltable poly (meth) acrylate mixture
US5518801A (en) * 1993-08-03 1996-05-21 The Procter & Gamble Company Web materials exhibiting elastic-like behavior
CA2136675C (en) * 1993-12-17 2005-02-15 Kimberly-Clark Worldwide, Inc. Liquid permeable, quilted film laminates
US5558656A (en) * 1993-12-20 1996-09-24 The Procter & Gamble Company Sanitary napkin having an internal shaping component
US5531732A (en) * 1994-06-14 1996-07-02 Minnesota Mining And Manufacturing Company Adjustable fit disposable training pant or incontinence garment having disposable means
AU700153B2 (en) * 1994-10-12 1998-12-24 Kimberly-Clark Worldwide, Inc. Melt-extrudable thermoplastic polypropylene composition and nonwoven web prepared therefrom
TW330217B (en) 1994-12-20 1998-04-21 Kimberly Clark Co Low gauge films and film/nonwoven laminates
ZA9510604B (en) 1994-12-20 1996-07-03 Kimberly Clark Co Low gauge films and film/nonwoven laminates
DE19523497C2 (en) * 1995-06-28 1997-06-19 Coronor Composites Gmbh A process for producing a bulky composite sheet
US5814178A (en) * 1995-06-30 1998-09-29 Kimberly-Clark Worldwide, Inc. Process for making a bulked fabric laminate
DE69627004D1 (en) 1995-11-09 2003-04-30 Kimberly Clark Co A disposable absorbent article with elastic zone
US5738745A (en) * 1995-11-27 1998-04-14 Kimberly-Clark Worldwide, Inc. Method of improving the photostability of polypropylene compositions
AU726134B2 (en) * 1995-12-04 2000-11-02 Procter & Gamble Company, The Web materials having elastic-like and expansive zones
US6070579A (en) * 1996-03-08 2000-06-06 3M Innovative Properties Company Elastomeric composite headband
US5650214A (en) * 1996-05-31 1997-07-22 The Procter & Gamble Company Web materials exhibiting elastic-like behavior and soft, cloth-like texture
EP0820747A1 (en) * 1996-07-25 1998-01-28 THE PROCTER &amp; GAMBLE COMPANY Absorbent article with elastic feature
DE19636691A1 (en) * 1996-09-10 1998-04-09 Mildenberger & Willing Verpack Multi=layer plastic film and manufacturing process in which two layers are co-extruded and connected to each other
US5885908A (en) * 1996-10-04 1999-03-23 Minnesota Mining And Manufacturing Co. Anisotropic elastic films
US5733628A (en) * 1996-10-10 1998-03-31 Tredegar Industries, Inc. Breathable elastic polymeric film laminates
US5910224A (en) * 1996-10-11 1999-06-08 Kimberly-Clark Worldwide, Inc. Method for forming an elastic necked-bonded material
US5789065A (en) * 1996-10-11 1998-08-04 Kimberly-Clark Worldwide, Inc. Laminated fabric having cross-directional elasticity and method for producing same
US6436529B1 (en) * 1997-01-21 2002-08-20 3M Innovative Properties Company Elatomeric laminates and composites
US7087287B2 (en) * 1997-02-21 2006-08-08 The Procter & Gamble Company Tear resistant porous extensible web
TR199902029T2 (en) * 1997-02-21 2001-03-21 The Procter & Gamble Company resistant porous extensible web tearing.
USH2042H1 (en) 1997-05-09 2002-08-06 The Procter & Gamble Company Method for forming a breathable film
US6238767B1 (en) 1997-09-15 2001-05-29 Kimberly-Clark Worldwide, Inc. Laminate having improved barrier properties
US6045900A (en) 1997-09-15 2000-04-04 Kimberly-Clark Worldwide, Inc. Breathable filled film laminate
KR100528043B1 (en) * 1997-10-15 2005-11-15 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 Anisotropic elastic films and webs
DE19806530B4 (en) * 1998-02-17 2006-12-14 Carl Freudenberg Kg Laminate and hygiene articles made therefrom, packaging materials and tree membranes
US6270910B1 (en) 1998-04-03 2001-08-07 3M Innovative Properties Company Anisotropic film
US20010018579A1 (en) * 1998-12-18 2001-08-30 Walter Klemp Disposable absorbent garment having stretchable side waist regions
BR9916298A (en) * 1998-12-18 2004-06-29 Kimberly Clark Co Adjustable trousers and refixável
US6610383B1 (en) * 1998-12-23 2003-08-26 Kimberly-Clark Worldwide, Inc. Transversely extensible and retractable necked laminate of no-elastic sheet layers
US6475600B1 (en) * 1998-12-23 2002-11-05 Kimberly-Clark Worldwide, Inc. Composite material having stretch and recovery including a layer of an elastic material and a transversely extensible and retractable necked laminate of non-elastic sheet layers
US6472045B1 (en) * 1998-12-23 2002-10-29 Kimberly-Clark Worldwide, Inc. Liquid transfer material of a transversely extensible and retractable necked laminate of non-elastic sheet layers
US6461457B1 (en) 1999-06-30 2002-10-08 Kimberly-Clark Worldwide, Inc. Dimensionally stable, breathable, stretch-thinned, elastic films
US6465073B1 (en) 1999-06-30 2002-10-15 Kimberly-Clark Worldwide, Inc. Variable stretch material and process to make it
US6682514B1 (en) 1999-06-30 2004-01-27 Kimberly-Clark Worldwide Inc. Efficient zoned elastic laminate
US6517080B1 (en) * 1999-07-19 2003-02-11 Caterpillar Inc Seal material having anisotropic properties
US6927315B1 (en) * 1999-07-30 2005-08-09 3M Innovative Properties Company Adhesive composite having distinct phases
US6447875B1 (en) 1999-07-30 2002-09-10 3M Innovative Properties Company Polymeric articles having embedded phases
US6472084B1 (en) * 2000-02-15 2002-10-29 Tredegar Film Products Corporation Tear-resistant low set elastic film and method of making
US20020019616A1 (en) * 2000-05-15 2002-02-14 Thomas Oomman Painumoottil Elastomeric laminate with film and strands suitable for a nonwoven garment
US8182457B2 (en) 2000-05-15 2012-05-22 Kimberly-Clark Worldwide, Inc. Garment having an apparent elastic band
US20020009940A1 (en) * 2000-05-15 2002-01-24 May Raymond Jeffrey Targeted elastic laminate having zones of different polymer materials
US20020007164A1 (en) * 2000-05-15 2002-01-17 Boggs Lavada Campbell Garment having gasket with integrated zone of elastic tension and/or stretch
US20020007148A1 (en) * 2000-05-15 2002-01-17 May Raymond Jeffrey Garment having integrated zone of elastic tension aligned with an opening
US6979480B1 (en) 2000-06-09 2005-12-27 3M Innovative Properties Company Porous inkjet receptor media
US6506478B1 (en) 2000-06-09 2003-01-14 3M Innovative Properties Company Inkjet printable media
US6555213B1 (en) 2000-06-09 2003-04-29 3M Innovative Properties Company Polypropylene card construction
WO2001096098A1 (en) 2000-06-09 2001-12-20 3M Innovative Properties Company Materials and methods for creating waterproof, durable aqueous inkjet receptive media
US6700036B2 (en) 2000-09-22 2004-03-02 Tredegar Film Products Corporation Acquisition distribution layer having void volumes for an absorbent article
US6623837B2 (en) 2000-12-27 2003-09-23 Kimberly-Clark Worldwide, Inc. Biaxially extendible material
US7078582B2 (en) 2001-01-17 2006-07-18 3M Innovative Properties Company Stretch removable adhesive articles and methods
JP2003085910A (en) * 2001-09-11 2003-03-20 Sony Corp Disk cartridge, disk recording medium device and disk recording and reproducing device
US6780272B2 (en) * 2001-09-17 2004-08-24 3M Innovative Properties Company Method for producing web for use in making shaped elastic ears disposable absorbent article diapers
WO2003046790A1 (en) * 2001-11-27 2003-06-05 Accenture Llp Context sensitive advertisement delivery framework
DE10158345B4 (en) * 2001-11-28 2005-11-24 Nordenia Deutschland Gronau Gmbh Monoaxially elastic laminate film
AR037598A1 (en) * 2001-11-30 2004-11-17 Tredegar Film Prod Corp Composite soft and stretchy
JP3622722B2 (en) * 2001-12-05 2005-02-23 セイコーエプソン株式会社 Display driving circuit, an electro-optical device and a display driving method
DE10161276B4 (en) * 2001-12-14 2004-09-09 Nordenia Deutschland Gronau Gmbh An elastic film laminate of three interconnected plastic films
US6939334B2 (en) * 2001-12-19 2005-09-06 Kimberly-Clark Worldwide, Inc. Three dimensional profiling of an elastic hot melt pressure sensitive adhesive to provide areas of differential tension
DE10202333B4 (en) * 2002-01-23 2006-04-06 Nordenia Deutschland Gronau Gmbh Process for producing an elastic, air-permeable composite film
DE10209302C1 (en) * 2002-03-02 2003-08-07 Nordenia Deutschland Gronau Composite sheet production for making disposable nappies comprises stretching non-woven textile at right angles to feed direction, producing folds which are glued or welded to thermoplastic support sheet
DE10210415C1 (en) * 2002-03-09 2003-09-25 Nordenia Deutschland Gronau A method for producing an air-permeable composite film having a textile surface, the elastic and non-elastic regions
AT398989T (en) * 2002-04-02 2008-07-15 Sca Hygiene Prod Ab Method for manufacturing a differently implemented element and differently made element produced thereof
US7037300B2 (en) 2002-04-02 2006-05-02 Sca Hygiene Products Ab Method of producing a differentially stretched member and a differentially stretched member produced thereby
US7316842B2 (en) 2002-07-02 2008-01-08 Kimberly-Clark Worldwide, Inc. High-viscosity elastomeric adhesive composition
US6881375B2 (en) * 2002-08-30 2005-04-19 Kimberly-Clark Worldwide, Inc. Method of forming a 3-dimensional fiber into a web
US6677038B1 (en) 2002-08-30 2004-01-13 Kimberly-Clark Worldwide, Inc. 3-dimensional fiber and a web made therefrom
US7303642B2 (en) 2002-11-12 2007-12-04 Kimberly-Clark Worldwide, Inc. Methods of making responsive film with corrugated microlayers having improved properties
US6984439B2 (en) * 2002-11-12 2006-01-10 Kimberly-Clark Worldwide, Inc. Responsive film with corrugated microlayers having improved properties
US7510758B2 (en) * 2002-11-12 2009-03-31 Kimberly-Clark Worldwide, Inc. Breathable elastic multilayer film laminate and method of making a breathable elastic multilayer film laminate
US7226880B2 (en) 2002-12-31 2007-06-05 Kimberly-Clark Worldwide, Inc. Breathable, extensible films made with two-component single resins
AT506930T (en) * 2003-01-08 2011-05-15 Exxonmobil Chem Patents Inc Elastic articles and manufacturing method therefor
US7048984B2 (en) * 2003-02-28 2006-05-23 3M Innovative Properties Company Net structure and method of making
EP1596683A1 (en) * 2003-02-28 2005-11-23 3M Innovative Properties Company Net structure and method of making
SE0300592D0 (en) * 2003-03-07 2003-03-07 Sca Hygiene Prod Ab Method of applying elastic members on an absorbent article byxformigt
US7172669B2 (en) * 2003-03-07 2007-02-06 Sca Hygiene Products Ab Method for applying elastic members on a pant-shaped absorbent article
US7238314B2 (en) * 2003-03-13 2007-07-03 3M Innovative Properties Company Polymer transfer apparatus, methods, and composite webs
EP1601515A2 (en) * 2003-03-13 2005-12-07 3M Innovative Properties Company Composite webs and closure systems
US20040219198A1 (en) * 2003-05-01 2004-11-04 3M Innovative Properties Company Transdermal drug delivery device with multilayer backing
US20040256051A1 (en) * 2003-06-13 2004-12-23 Turvey Robert R. Method of manufacturing container covers
WO2004113194A2 (en) * 2003-06-13 2004-12-29 S. C. Johnson Home Storage, Inc. Disposable container cover with elastic replacement
US7932196B2 (en) 2003-08-22 2011-04-26 Kimberly-Clark Worldwide, Inc. Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
DE10338589A1 (en) * 2003-08-22 2005-03-24 Bayer Ag Plastic composite component
US7179952B2 (en) * 2003-08-25 2007-02-20 Kimberly-Clark Worldwide, Inc. Absorbent article formed with microlayered films
US7872168B2 (en) 2003-10-31 2011-01-18 Kimberely-Clark Worldwide, Inc. Stretchable absorbent article
US7601657B2 (en) 2003-12-31 2009-10-13 Kimberly-Clark Worldwide, Inc. Single sided stretch bonded laminates, and methods of making same
US7087285B2 (en) * 2004-03-02 2006-08-08 Dzs, Llc Elastic stitched composite fabric using inextensible yarns
US7737215B2 (en) 2005-03-17 2010-06-15 Dow Global Technologies Inc. Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminates
US7910658B2 (en) * 2005-03-17 2011-03-22 Dow Global Technologies Llc Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminates
US7754937B2 (en) * 2004-03-18 2010-07-13 Boehringer Technologies, L.P. Wound packing material for use with suction
US7799162B2 (en) * 2004-05-10 2010-09-21 3M Innovative Properties Company Composite webs with elastic composite structures
US7717893B2 (en) 2004-06-04 2010-05-18 The Procter & Gamble Company Absorbent articles comprising a slow recovery elastomer
US7678316B2 (en) * 2004-06-08 2010-03-16 3M Innovative Properties Company Coextruded profiled webs
US7241483B2 (en) * 2004-06-08 2007-07-10 3M Innovative Properties Company Reticulated webs and method of making
MXPA06013940A (en) * 2004-06-28 2007-03-15 Sca Hygiene Prod Ab Absorbent article with improved leakage security and fit.
RU2007103308A (en) * 2004-06-29 2008-08-10 Эвери Деннисон Копэрейшн (Us) Napper clasp (options), extrusive layered material and method for producing it
DE102004035396A1 (en) * 2004-07-21 2006-03-16 Nordenia Deutschland Gronau Gmbh Elastic laminate
US20060073328A1 (en) * 2004-09-21 2006-04-06 Andover Coated Products, Inc. Strapping system with non-elastic cohesive tape
US7513969B2 (en) * 2004-10-15 2009-04-07 The Procter & Gamble Company Method for producing a corrugated stretch laminate with a free formed printed elastic member
US20060111686A1 (en) * 2004-11-23 2006-05-25 Uwe Schneider Absorbent article with heat deactivated area
US20060141887A1 (en) * 2004-12-23 2006-06-29 Morman Michael T Cross-direction elastic film laminates, and methods of making same
US7897081B2 (en) * 2004-12-30 2011-03-01 3M Innovative Properties Company Method of extruding articles
US8419701B2 (en) 2005-01-10 2013-04-16 The Procter & Gamble Company Absorbent articles with stretch zones comprising slow recovery elastic materials
CN101106962B (en) 2005-01-26 2010-12-08 宝洁公司 Disposable pull-on diaper having a low force, slow recovery elastic waist
US20060178651A1 (en) * 2005-02-08 2006-08-10 Glaug Frank S Unitary stretch panel and method of manufacture
WO2006124889A1 (en) * 2005-05-12 2006-11-23 Clopay Plastic Products Company, Inc. Elastomeric films with brittle nonblocking skins
US20070049888A1 (en) * 2005-08-31 2007-03-01 Soerens Dave A Absorbent core comprising a multi-microlayer film
TW200728073A (en) 2005-10-26 2007-08-01 Dow Global Technologies Inc Multi-layer, elastic articles
EP1943093A2 (en) * 2005-10-26 2008-07-16 The Dow Global Technologies Inc. Multi-layer, pre-stretched elastic articles
US20070113499A1 (en) * 2005-11-21 2007-05-24 Williams Mark F House wrap with integral furring strips
US20070117934A1 (en) * 2005-11-21 2007-05-24 National Starch And Chemical Investment Holding Company Adhesive containing block copolymers
US20100285286A1 (en) * 2005-11-22 2010-11-11 Pliant Corporation Elastic laminates
US8153243B2 (en) 2005-12-09 2012-04-10 Dow Global Technologies Llc Interpolymers suitable for multilayer films
US8034431B2 (en) * 2006-01-25 2011-10-11 3M Innovative Properties Company Intermittently bonded fibrous web laminate
EP2032110B1 (en) 2006-06-21 2013-08-07 Sca Hygiene Products Ab Belted absorbent garment
AU2006344791B2 (en) 2006-06-21 2013-06-06 Essity Hygiene And Health Aktiebolag Belted absorbent garment
US7622180B2 (en) * 2006-07-10 2009-11-24 3M Innovative Properties Company Net hook fasteners
EP2043843A4 (en) 2006-07-13 2010-09-01 Sca Hygiene Prod Ab A seam joining together at least web materials
US7534481B2 (en) 2006-08-08 2009-05-19 3M Innovative Properties Company Shaped elastic tab laminates
US20080070464A1 (en) * 2006-09-14 2008-03-20 3M Innovative Properties Company Composite webs and methods of manufacturing same
US7943537B2 (en) 2006-09-19 2011-05-17 Irving Personal Care Limited Stretch laminate material and methods of making same
ES2441591T3 (en) 2006-09-25 2014-02-05 Sca Hygiene Products Ab Absorbent garment with belt and method for manufacturing
WO2008041888A1 (en) 2006-10-03 2008-04-10 Sca Hygiene Products Ab Absorbent garment and method for making it
WO2008061396A1 (en) * 2006-11-24 2008-05-29 Zhonghe Sun Disposable diaper
MX2009012410A (en) * 2007-05-21 2009-12-01 Sca Hygiene Prod Ab Absorbent article with improved fit.
US20090047855A1 (en) * 2007-08-16 2009-02-19 3M Innovative Properties Company Stretchable elastic nonwoven laminates
JP5220119B2 (en) * 2007-11-08 2013-06-26 エスセーアー・ハイジーン・プロダクツ・アーベー Hygiene products with side panels attached temporarily
US8323257B2 (en) 2007-11-21 2012-12-04 The Procter & Gamble Company Absorbent articles comprising a slow recovery stretch laminate and method for making the same
CN101909567A (en) * 2007-12-13 2010-12-08 宝洁公司 Absorbent article with composite sheet comprising elastic material
CN101883549B (en) 2007-12-20 2013-04-24 Sca卫生用品公司 A seam joining together at least two web materials
WO2009094530A1 (en) * 2008-01-24 2009-07-30 The Procter & Gamble Company Extrusion bonded laminates for absorbent articles
WO2009103200A1 (en) * 2008-02-22 2009-08-27 Sun Zhonghe Absorbent article with nice air permeability
DE102008013689A1 (en) * 2008-03-11 2009-09-17 Tesa Se The film system
JP5539972B2 (en) 2008-05-30 2014-07-02 ケーシーアイ ライセンシング インコーポレイテッド Superabsorbent reduced pressure wound healing article and system
US9752022B2 (en) 2008-07-10 2017-09-05 Avery Dennison Corporation Composition, film and related methods
US8222169B2 (en) * 2008-08-05 2012-07-17 Kimberly-Clark Worldwide, Inc. Zoned elastic laminate and method to manufacture same
US8585669B2 (en) 2008-10-16 2013-11-19 Sca Hygiene Products Ab Absorbent article with elastic side panels
EP2349157B1 (en) 2008-10-30 2015-03-25 Sca Hygiene Products AB Disposable absorbent article comprising a printed tag
BRPI0823140B1 (en) 2008-10-30 2019-03-06 Essity Hygiene And Health Aktiebolag Disposable absorbent article understanding a partially impressed printed label
EP2445467B8 (en) 2009-06-26 2014-11-19 Sca Hygiene Products AB Method for manufacturing a pants-type diaper
US8292863B2 (en) 2009-10-21 2012-10-23 Donoho Christopher D Disposable diaper with pouches
US8753466B2 (en) 2009-10-23 2014-06-17 Kimberly-Clark Worldwide, Inc. Method of making disposable absorbent garments employing elastomeric film laminate body panels
DE102009054338A1 (en) * 2009-11-24 2011-05-26 Giesecke & Devrient Gmbh Process for producing a film composite material and a card body
ES2620257T3 (en) 2010-02-08 2017-06-28 3M Innovative Properties Company Coextrusion matrix and method to manufacture an extruded article using the same
DE102010009230A1 (en) 2010-02-25 2011-08-25 Giesecke & Devrient GmbH, 81677 Highly flexible film composite material and its use in card bodies
US9017305B2 (en) 2010-11-12 2015-04-28 The Procter Gamble Company Elastomeric compositions that resist force loss and disintegration
US20120288695A1 (en) * 2011-05-09 2012-11-15 Jenkins Shawn E Multi-Layer Breathable Films
CN103192567B (en) 2012-01-09 2016-05-11 佛山金万达科技股份有限公司 The thermoplastic resin film layer composition and preparation method
US9469091B2 (en) * 2012-08-08 2016-10-18 3M Innovative Properties Company Method of making extensible web laminates
AU2013356928B2 (en) * 2012-12-11 2017-08-10 Innovative Trauma Care, Inc. Hemostatic glove device and method for use of same
US8889240B2 (en) 2012-12-28 2014-11-18 3M Innovative Properties Company Stretch release article
JP6385364B2 (en) * 2012-12-28 2018-09-05 ダウ グローバル テクノロジーズ エルエルシー Multilayer film containing functional ethylene-based polymer composition
CN105188629A (en) * 2013-05-03 2015-12-23 宝洁公司 Absorbent articles comprising stretch laminates
US9944764B2 (en) 2013-05-23 2018-04-17 3M Innovative Properties Company Reticulated thermoplastic film and method of making the same
US9649824B2 (en) 2013-05-23 2017-05-16 3M Innovative Properties Company Laminates including a reticulated thermoplastic film and method of making the same
US20160143791A1 (en) 2013-06-20 2016-05-26 3M Innovative Properties Company Stretch release articles and fasteners
FR3012255B1 (en) * 2013-10-17 2017-03-10 Commissariat Energie Atomique Process for forming wrinkles by fusioning a foundation on which restorates a constrained layer
US9358759B2 (en) 2013-12-19 2016-06-07 Kimberly-Clark Worldwide, Inc. Multilayered elastic laminates with enhanced strength and elasticity and methods of making thereof
US10213990B2 (en) 2013-12-31 2019-02-26 Kimberly-Clark Worldwide, Inc. Methods to make stretchable elastic laminates
US9802392B2 (en) 2014-03-31 2017-10-31 Kimberly-Clark Worldwide, Inc. Microtextured multilayered elastic laminates with enhanced strength and elasticity and methods of making thereof
WO2017160609A1 (en) 2016-03-14 2017-09-21 3M Innovative Properties Company Surface protection film and related methods
IT201600080979A1 (en) * 2016-08-02 2018-02-02 Fameccanica Data Spa A process for the production of a composite elastic tape

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL288289A (en) * 1962-01-29
US3459832A (en) * 1965-09-24 1969-08-05 Monsanto Co Crystalline polystyrene having activity as a polymerization catalyst
US3694815A (en) * 1970-09-25 1972-10-03 Kimberly Clark Co Method for applying elastic ribbon to fabrics
US3700633A (en) * 1971-05-05 1972-10-24 Shell Oil Co Selectively hydrogenated block copolymers
US3800796A (en) * 1972-04-13 1974-04-02 E Jacob Disposable diaper with semielastic strip fasteners
GB1575507A (en) * 1976-02-10 1980-09-24 Shell Int Research Hydrogenated star-shaped polymers and oil compositions thereof
US4156673A (en) * 1976-02-10 1979-05-29 Shell Oil Company Hydrogenated star-shaped polymer
US4197069A (en) * 1976-05-21 1980-04-08 Peter Cloeren Variable thickness extrusion die
US4152387A (en) * 1976-05-21 1979-05-01 Peter Cloeren Method for forming multi-layer laminates
US4418123A (en) * 1978-12-06 1983-11-29 H. B. Fuller Company Extrudable self-adhering elastic and method of employing same
US4227952A (en) * 1979-04-16 1980-10-14 Sabee Products, Inc. Method and apparatus for making diapers with elastic bands
US4300967A (en) * 1979-11-15 1981-11-17 Kimberly-Clark Corporation Methods and apparatus for elasticizing discrete areas of conformable garments
US4486192A (en) * 1979-11-15 1984-12-04 Kimberly-Clark Corporation Conformable garments with discrete elasticized areas
US4710189A (en) * 1983-03-18 1987-12-01 The Procter & Gamble Company Shaped disposable diapers with shaped elastically contractible waistbands
ZA8502583B (en) * 1984-05-01 1985-11-27 Kimberly Clark Co Heat-shrinkable elastomer,method of producing the elastomer and articles utilising the elastomer
US4681580A (en) * 1985-03-29 1987-07-21 The Procter & Gamble Company Disposable diapers with unitary waistshield and elastically expansible waistbands
US4958757A (en) * 1985-05-13 1990-09-25 Pittway Corporation Ferrule for sealing with a container
US4640726A (en) * 1985-06-27 1987-02-03 Kimberly-Clark Corporation Heat activation process and apparatus for heat shrinkable material
GB2190406A (en) * 1986-04-15 1987-11-18 Procter & Gamble Article including segment which is elastically shirrable after manufacture
US4778701A (en) * 1986-05-27 1988-10-18 Minnesota Mining And Manufacturing Company Composite prelaminated tape system
JPS6350807U (en) * 1986-09-24 1988-04-06
US4880706A (en) * 1987-10-05 1989-11-14 Mobil Oil Corp. Biaxially oriented multilayer barrier films
US4938753A (en) * 1987-12-16 1990-07-03 Kimberly-Clark Corporation Seam construction in a disposable training pant, incontinence garment, or diaper
US4940464A (en) * 1987-12-16 1990-07-10 Kimberly-Clark Corporation Disposable incontinence garment or training pant
CA1326328C (en) * 1987-12-16 1994-01-25 Paul Theodore Van Gompel Disposable incontinence garment or training pant
AU635580B2 (en) * 1989-11-17 1993-03-25 Minnesota Mining And Manufacturing Company Elastomeric laminates with microtextured skin layers
US5344691A (en) * 1990-03-30 1994-09-06 Minnesota Mining And Manufacturing Company Spatially modified elastic laminates
JP3007414B2 (en) * 1990-03-30 2000-02-07 ミネソタ マイニング アンド マニュファクチャリング カンパニー Elastomeric tape having a fine patterned skin layer
GB2244422B (en) * 1990-05-09 1994-03-16 Kao Corp Disposable diaper
US5156793A (en) * 1991-02-28 1992-10-20 The Procter & Gamble Company Method for incrementally stretching zero strain stretch laminate web in a non-uniform manner to impart a varying degree of elasticity thereto
CA2067459C (en) * 1991-05-14 2001-08-28 Ray E. Patrick Produce packaging film

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